<script lang="tsx">
import type { DescriptionsProps } from 'ant-design-vue/es/descriptions'
import type { CSSProperties } from 'vue'
import { computed, defineComponent, ref, toRefs, unref } from 'vue'
import { get } from 'lodash-es'
import { Descriptions } from 'ant-design-vue'
import type { DescInstance, DescItem, DescriptionProps } from './typing'
import type { CollapseContainerOptions } from '@/components/Container'
import { CollapseContainer } from '@/components/Container'
import { useDesign } from '@/hooks/web/useDesign'
import { isFunction } from '@/utils/is'
import { getSlot } from '@/utils/helper/tsxHelper'
import { useAttrs } from '@/hooks/core/useAttrs'

const props = {
  useCollapse: { type: Boolean, default: true },
  title: { type: String, default: '' },
  size: {
    type: String,
    validator: v => ['small', 'default', 'middle', undefined].includes(v),
    default: 'small',
  },
  bordered: { type: Boolean, default: true },
  column: {
    type: [Number, Object] as PropType<number | Recordable>,
    default: () => {
      return { xxl: 4, xl: 3, lg: 3, md: 3, sm: 2, xs: 1 }
    },
  },
  collapseOptions: {
    type: Object as PropType<CollapseContainerOptions>,
    default: null,
  },
  schema: {
    type: Array as PropType<DescItem[]>,
    default: () => [],
  },
  data: { type: Object },
}

export default defineComponent({
  name: 'Description',
  props,
  emits: ['register'],
  setup(props, { slots, emit }) {
    const propsRef = ref<Partial<DescriptionProps> | null>(null)

    const { prefixCls } = useDesign('description')
    const attrs = useAttrs()

    // Custom title component: get title
    const getMergeProps = computed(() => {
      return {
        ...props,
        ...(unref(propsRef) as Recordable),
      } as DescriptionProps
    })

    const getProps = computed(() => {
      const opt = {
        ...unref(getMergeProps),
        title: undefined,
      }
      return opt as DescriptionProps
    })

    /**
     * @description: Whether to setting title
     */
    const useWrapper = computed(() => !!unref(getMergeProps).title)

    /**
     * @description: Get configuration Collapse
     */
    const getCollapseOptions = computed((): CollapseContainerOptions => {
      return {
        // Cannot be expanded by default
        canExpand: false,
        ...unref(getProps).collapseOptions,
      }
    })

    const getDescriptionsProps = computed(() => {
      return { ...unref(attrs), ...unref(getProps) } as DescriptionsProps
    })

    /**
     * @description:设置desc
     */
    function setDescProps(descProps: Partial<DescriptionProps>): void {
      // Keep the last setDrawerProps
      propsRef.value = { ...(unref(propsRef) as Recordable), ...descProps } as Recordable
    }

    // Prevent line breaks
    function renderLabel({ label, labelMinWidth, labelStyle }: DescItem) {
      if (!labelStyle && !labelMinWidth)
        return label

      const labelStyles: CSSProperties = {
        ...labelStyle,
        minWidth: `${labelMinWidth}px `,
      }
      return <div style={labelStyles}>{label}</div>
    }

    function renderItem() {
      const { schema, data } = unref(getProps)
      return unref(schema)
        .map((item) => {
          const { render, field, span, show, contentMinWidth } = item

          if (show && isFunction(show) && !show(data))
            return null

          const getContent = () => {
            const _data = unref(getProps)?.data
            if (!_data)
              return null

            const getField = get(_data, field)
            // eslint-disable-next-line no-prototype-builtins
            if (getField && !toRefs(_data).hasOwnProperty(field))
              return isFunction(render) ? render('', _data) : ''

            return isFunction(render) ? render(getField, _data) : getField ?? ''
          }

          const width = contentMinWidth
          return (
            <Descriptions.Item label={renderLabel(item)} key={field} span={span}>
              {() => {
                if (!contentMinWidth)
                  return getContent()

                const style: CSSProperties = {
                  minWidth: `${width}px`,
                }
                return <div style={style}>{getContent()}</div>
              }}
            </Descriptions.Item>
          )
        })
        .filter(item => !!item)
    }

    const renderDesc = () => {
      return (
        <Descriptions class={`${prefixCls}`} {...(unref(getDescriptionsProps) as any)}>
          {renderItem()}
        </Descriptions>
      )
    }

    const renderContainer = () => {
      const content = props.useCollapse ? renderDesc() : <div>{renderDesc()}</div>
      // Reduce the dom level
      if (!props.useCollapse)
        return content

      const { canExpand, helpMessage } = unref(getCollapseOptions)
      const { title } = unref(getMergeProps)

      return (
        <CollapseContainer title={title} canExpan={canExpand} helpMessage={helpMessage}>
          {{
            default: () => content,
            action: () => getSlot(slots, 'action'),
          }}
        </CollapseContainer>
      )
    }

    const methods: DescInstance = {
      setDescProps,
    }

    emit('register', methods)
    return () => (unref(useWrapper) ? renderContainer() : renderDesc())
  },
})
</script>
